gcdRadar
archive/Patch now/AIR-2026-1647
closedclosed 29 Oct 2026Patch now2 Disclosed vulnerabilityAI

CVE-2026-104317: IBM Langflow OSS Deserialization Vulnerability

IBM Langflow OSS

IBM Langflow OSS versions 1.0.0 through 1.12.3 are susceptible to arbitrary code execution through the deserialization of untrusted data reaching the message broker. The vulnerability is rated high with a CVSS score of 8.1.

why this severityDisclosed vulnerability with no confirmed exploitation

disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why

CVSS
8.1
EPSS
0.01 · top 52% · 2026-11-13
EPSS scores by FIRST
fix status
Fix status unknown
affected
IBM Langflow OSS 1.0.0 to 1.12.3
first report
29 Oct 2026
last update
29 Oct 2026
CVE ids
CVE-2026-104317other records

Timeline · 1

  1. 29 Oct 2026CVE-2026-104317: IBM Langflow OSS 1.0.0 through 1.12.3 could allow a remote attacker who could reach the message broker to execute arbitrary code…

Sources · 1

Advisories and databases

  1. 2026-10-29
    CVE-2026-104317: IBM Langflow OSS 1.0.0 through 1.12.3 could allow a remote attacker who could reach the message broker to execute arbitrary code…
    NVD · nvd.nist.gov/vuln/detail/CVE-2026-104317

Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.

Classification

lane
Patch now
AI role
Attack on AI
categories
Infrastructure vulnerabilitySupply chain
severity
2 · Disclosed vulnerability
fix status
Fix status unknown
targets
Framework / tooling
owasp llm top 10
LLM03:2025 Supply Chain
mitre atlas
AML.T0010 AI Supply Chain Compromise
tags
deserialization
dates
happened 29 Oct 2026 · first reported 29 Oct 2026
origin
NVD
Vulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
record
confidence 0.90 · created 2026-10-29 19:37Z · updated 2026-10-29 19:37Z

Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned

Copy a brief

This record as a short Markdown brief, for a ticket, a chat or a coding agent.

the brief as text
# CVE-2026-104317: IBM Langflow OSS Deserialization Vulnerability

https://gcdradar.vercel.app/incidents/cve-2026-104317-ibm-langflow-oss-deserialization-vulnerabili · AIR-2026-1647 · closed 2026-10-29

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability): Disclosed vulnerability with no confirmed exploitation
- Fix status: Fix status unknown
- First reported: 2026-10-29
- AI role: Attack on AI
- Products: IBM Langflow OSS
- CVE ids: CVE-2026-104317
- CVSS: 8.1

## Summary

IBM Langflow OSS versions 1.0.0 through 1.12.3 are susceptible to arbitrary code execution through the deserialization of untrusted data reaching the message broker. The vulnerability is rated high with a CVSS score of 8.1.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Affected and fixed versions

- Affected: IBM Langflow OSS 1.0.0 to 1.12.3

## Latest updates

- 2026-10-29: CVE-2026-104317: IBM Langflow OSS 1.0.0 through 1.12.3 could allow a remote attacker who could reach the message broker to execute arbitrary code… (https://nvd.nist.gov/vuln/detail/CVE-2026-104317)

## Sources

- 2026-10-29 NVD: CVE-2026-104317: IBM Langflow OSS 1.0.0 through 1.12.3 could allow a remote attacker who could reach the message broker to execute arbitrary code… https://nvd.nist.gov/vuln/detail/CVE-2026-104317

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.

Related

  1. closed8.8
    Langflow CVE-2026-93675: IBM Langflow OSS dependency confusion vulnerability

    Patch now · Disclosed · since 7 Oct 2026 · CVE-2026-93675

    AI
  2. live
    MCP SDKs MCP Tool Poisoning in Agentic AI Frameworks Across Multiple Frameworks

    Research · since 3 Nov 2026 · updated 5 Nov 2026

    AI
  3. live
    MCP servers & tools AI coding agents install unpatched archived MCP servers

    Research · since 3 Nov 2026

    AI
  4. closed7.5
    vLLM CVE-2026-115912: vLLM shared-memory multimodal remote code execution

    Patch now · Disclosed · Patched · since 26 Oct 2026 · updated 28 Oct 2026 · CVE-2026-115912

    AI
  5. closed
    LiteLLM LiteLLM 1.107.0 compromised via malicious Python startup hooks

    Supply chain · Exploited · since 23 Oct 2026

    AI
  6. closed7.5
    Claude Code + SDKs CVE-2026-86063: Claude Code plugin installation flow hash pin bypass vulnerability

    Patch now · Disclosed · since 13 Oct 2026 · updated 15 Oct 2026 · CVE-2026-86063

    AI